八年级英语下册 Lesson9 How Does a Plant Grow教案 冀教版.doc

课时11Lesson9: How Does a Plant Grow? Step1：复习巩固、激情导入复习：提问Unit1重点短语、句型导入：Have you ever planted a seed? How do you plant a seed? Step2：出示目标、明确任务1. 牢记本课黑体词汇：plant/grow /water /leaf/lend/ruler /discuss/cover/itself/root等；2. 熟读对话，把握其意；3. 背诵重点句子1-4，并灵活运用相关知识点。 Step3：自主学习、合作探究任务一：限时5分钟，熟读所有词汇，牢记黑体词汇任务二：熟读对话，把握其意，画出不理解处，同桌之间交流任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1. Would you like some markers?2. Would you please lend me your green marker?3. Roots “grow into” plants?4. Dont forget to draw the sun. Step4：师生互动、展示提升互动一：单词记忆比赛互动二：对话熟读接力赛互动三：知识点展示大比拼 知识点一：Would you like some markers?would like 意为“希望、想要”，在意思上相当于want，但语气要比want委婉。【固定短语】would like sth = want sth Would like to do sth = want to do sth Would like sb to do sth = want sb to do sth【固定句型】1:Would you like sth?对Would you like sth？提出的建议或要求作答时，根据自己的实际需要回答：肯定回答用Yes,please. 否定回答用No, thanks./No, thank you.Eg:- Would you like some more soup? -No,thanks. Its delicious,but Ive had enough.2. Would you like to do sth?Would you like to do sth?用于要求对方做某事，常译为“请你做好吗？”其回答方式有多种。Eg:- Would you like to go with me? -(表示同意)With pleasure.或者Yes, Id like/love to.- -(委婉拒绝) Id like/love to，but I must finish my homework first.或者Im afraid I cant,because 知识点二：Would you please lend me your green marker ?【固定句型】Would you please+动词原形？【固定短语】lend表示借出，与介词to搭配，lend sb sth =lend sth to sb；borrow表示借入，与介词from搭配；keep表示持有，与一段时间连用 知识点三：Roots “grow into” plants.【固定短语】grow into 意为“长成” 知识点四：Dont forget to draw the sun.【高频考点】forget-forgot-forgottenforget doing sth “忘记做过了某事”（做了但忘了：强调事情做过了）forget to do sth “忘了去做某事”（因忘了而未做：强调事情还没做）Eg：I forgot posting the letter.我忘记信已寄出了。 I forget to post the letter yesterday.昨天我忘记寄信了。类似用法：remember Step5：巩固练习、检测验收教学反思：课时12Lesson10: Plant Parts Step1：复习巩固、激情导入复习：提问Lesson9知识点1-4导入：How many parts do plants have, do you know? Step2：出示目标、明确任务1. 牢记本课黑体词汇：feed等；2. 熟读课文，把握其意；3. 背诵重点句子1-4，并灵活运用相关知识点。 Step3：自主学习、合作探究任务一：限时2分钟，熟读所有词汇，牢记黑体词汇任务二：熟读课文，把握其意，画出不理解处，同桌之间交流任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1. Flowers, leaves and stems grow above ground.2. Plants have flowers because the flowers make seeds.3. New plants grow from seeds.4. The seeds of the rice plant feed billions of people. Step4：师生互动、展示提升互动一：单词记忆比赛互动二：课文熟读接力赛互动三：知识点展示大比拼 知识点一：Flowers, leaves and stems grow above ground.【词语辨析】on/above/overOn一般表示“在的上面”（既垂直又接触），与beneath相对；Over一般表示“在的正上方”（垂直但不接触），与under相对；Above一般表示“在的上方”/“比还高”（既不垂直又不接触），与below相对。注意：above还可指数量、重量、度数、山岳的海拔高度等方面超过或高于规定的数量或一般标准Eg：Todays temperature is above 39.【小试身手】用on、over、above填空1 We can see a new bridge the river.2 The plane is flying the clouds.3 They planted many trees the hill. 知识点二：Plants have flowers because the flowers make seeds.Because是连词，意为“因为”，引导原因状语从句，就其引导的原因状语从句提问要用why。【英汉差异】在英语里表达“因为所以”时，只能分别用because或者so，二者不能同时使用，这一点与汉语不同，值得注意。Eg：He didnt go to work because his wife was ill.= His wife was ill, so he didnt go to work. 知识点三：New plants grow from seeds. 知识点四：The seeds of the rice plant feed billions of people.hundred/thousand/million/billion用法小结【词语辨析】hundred & hundreds of1. 当hundred作为数词或表示具体的数量时，前面可用其它具体数词来修饰，后面直接跟名词。Therere two hundred monkeys in the hill.2. 当hundred用于表示不确定的数量时，其后加s，即hundreds, hundreds of 成百的，数以百计的。前 面可用some,a few,several等词来修饰。hundreds 后面加of再加名词。hundreds of dollars几百美元I think therere hundreds of children in the kinder garden.我看这个幼儿园大约有几百名儿童。类似的搭配还有thousands of 数以千计的；millions of 数以百万计的；无数的。 象hundred,thousand,million,billion等量词，在用法上都遵循这一点。 Step5：巩固练习、检测验收教学反思：课时13Lesson11: Look after Your Plant! Step1：复习巩固、激情导入复习：提问Lesson10知识点1-4导入：Do you know how to look after your plant ? Step2：出示目标、明确任务1. 牢记本课词汇：look after/over/glass；2. 熟读课文，把握其意；3. 背诵重点句子1-6，并灵活运用相关知识点。 Step3：自主学习、合作探究任务一：限时2分钟，牢记所有词汇任务二：熟读两封邮件，把握其意，画出不理解处，同桌之间交流任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1. You need to look after it.2. You give it what it needs.3. Plants use sunlight to make food.4. Garden are full of plants.5. In spring, people put covers over plants to keep them warm at night.6. Windows are made of glass. Step4：师生互动、展示提升互动一：熟读邮件比赛互动二：课文熟读接力赛互动三：知识点展示大比拼 知识点一：You need to look after it.【固定词组】look after 意为“照看、照顾”相当于take care of. 表示“照看好、照顾好”用look well after相当于 take good care of【用法小结】有关look的短语 look about around 四下里看, 环顾; 仔细观察; 全面调查look after 照看, 照管目送 look ahead 向前看; 展望未来; 注意! 当心!look at 看, 查看考虑, 着眼于 look back 回头看; 回顾,停止不前,回头再拜访Look before you leap. 谚三思而后行。look down upon on 看下面, 俯视,蔑视, 看不起look up to 敬仰, 尊重 look for 寻找,期望 look forward to 盼望, 期待 look into 向.的里面看, 窥视; 浏览,调查look like 看起来象.看来要, 好象要 look (like) oneself 看上去和往常一样, 气色正常look out 向外望,注意, 当心, 小心 look over 查看; 过目look through 从头看完, 透视,审核, 查看,温习,从.中显露出来look up 查阅(字典, 资料)访问 look upon on 看作, 认为是.(接as)look well 看起来健康漂亮; (情况)显得不错 知识点二：You give it what it needs.What it needs.为宾语从句 从句要用陈述语序 知识点三：Plants use sunlight to make food.Use to do sth 意为“用做”。动词不定式表示目的Eg：We use markers to draw pictures.Be used to do sth 意为“被用于做”Eg：Bricks are used to build houses. 知识点四：Garden are full of plants.【固定词组】be full of 相当于 be filled with 意为“充满，满是”Eg：His bag is full of sweets.= His bag is filled with sweets. 知识点五：In spring ,people put covers over plants to keep them warm at night【Keep 用法聚焦】Keep 是英语中的一个常用动词，现将其用法归纳如下： 一号档案 keep 用作及物动词，意为“（暂时）保管、（暂时）存放、保存、保留”等，有时也可以表示“借”的意思。如：Please keep the dictionary well. 二号档案 keep 用作及物动词，意为“遵守（诺言、法律、条约等）、保守（秘密等）”如：He is a man who always keeps his words. 三号档案 keep 用作及物动词常用句型为“ keep+ 宾语 + 宾语补足语”，意为“使保持某种状态”，可分为以下三种情况：1 . keep+ 宾语 + 形容词 / 副词。如：Please keep the door and window open.2 . keep+ 宾语 + 介词短语。如：Please keep your hands behind your back.3 . Keep+ 宾语 +V-ing 形式。如：Dont keep them working day and night.四号档案 “ keep+V-ing 形式”或“ keep on+V-ing 形式”，表示“继续 / 一直 / 老是 / 反复做某事”。如：The old woman keeps on standing there still.五号档案 keep 用作连系动词时，与后面的形容词构成系表结构，意为“保持某种状态”。如：You must look after yourself and keep healthy. 知识点六：Windows are made of glass.make是一个非常活跃的动词，意为“制造”“制作”，常用于被动语态，是历届中招的必考内容之一。be made后面可以接不同的介词。其含义也不尽相同，同学们一定要多加注意，切勿混淆。 1. be made of . 该短语表示“某物由制造而成”（从制成品中可以看出原材料）。如： The bookshelf is made of wood. 2. be made from . 该短语也表示“某物由制造而成”（从制成品中一般看不出或难以分辨出原材料）。如： Paper is made from wood and bamboo. 3. be made in . 该短语表示“某物由某地制造”。如： The computer is made in Japan. 4. be made by . 该短语表示“某物由某个人或集体制造而成”，其中介词by用来强调动作的执行者。如： The TV set is made by the workers in the factory. 5. be made into. 该短语表示“某种原料制成某物”，与be made of.和be made from.的意思正好相反。试比较： Glass can be made into bottles. Bottles are made of glass. 6. be made up of. 该短语表示“某物由组成或构成”。如： The class is made up of fifty-six students. Step5：巩固练习、检测验收教学反思：课时14Lesson12: Pretty Little Plant Step1：复习巩固、激情导入复习：提问Lesson11知识点1-6导入：Do you like the song ? Step2：出示目标、明确任务1. 牢记本课黑体词汇：pretty/hole/its/everywhere等；2. 听录音1-3遍，能跟唱歌曲；3. 背诵重点句子1-3，并灵活运用相关知识点。 Step3：自主学习、合作探究任务一：限时5分钟，熟读所有词汇，牢记黑体词汇任务二：听录音，跟唱歌曲，比一比，赛一赛，看哪组唱的最好任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1. One group sings the purple words, and the other groups sings the black words.2. The prettiest plant.3. That you ever did see. Step4：师生互动、展示提升互动一：单词记忆比赛互动二：跟唱歌曲比赛互动三：知识点展示大比拼 知识点一：One group sings the purple words, and the other groups sings the black words.Onethe other（两者中）一个另一个Oneanother（三者及其以上中）一个另一个【词语辨析】other/others/anotherOther 意为“另外的、其他的”，多作定语，其后接名词Eg：Are there any other problems?Others 泛指“其余的人或事”，相当于“other+n.”Eg：Some of them are red, and others are white.Another 指“三者或三者以上不定范围中的另一个”Eg：Please give me another book. 知识点二：The prettiest plant.【词语辨析】pretty/beautiful/handsome/good-looking1. beautiful （美丽的），多用于女性，一般不用于男性。注意它是一个语气很强的词，着重指脸蛋迷人，体形匀称，比例完美，如：a beautiful girl （美女）。另外，它也可用来指小孩或事物。如：a beautiful girl / picture 美丽的小姑娘、图片。2. handsome 多用于男性，意为“英俊的”。如：a handsome young man （英俊的小伙），有时也用于女性（一般只用于成年女性，不用于少女），意为“体态健壮”或“端庄稳重”。如：Do you discribe her as beautiful or handsome？ （你是说她美丽呢，还是端庄稳重？）另外，它可用于事物，意为“美丽的”、“堂皇的”。如：a handsome building （堂皇的建筑）。3. pretty （漂亮的）与beautiful一样，也只用于女性、小孩或事物，但语气不如beautiful 强。它侧重指“娇小”。如：a pretty boy box 一个漂亮的小男孩 / 盒子。4. good-looking （好看的）可用于男性或女性。但一般不用于事物。 知识点三：That you ever did see.在英语中，常用助动词do置于动词原形之前，用以加强动词的肯定语气，do可以根据主语的人称，数及时态做相应变化，意为“的确、实在”Eg：Lily works hard.Lily does work hard. He read the letter just now. He did read the letter just now. Step5：巩固练习、检测验收教学反思：课时15Lesson13: Why Are Plants Important? Step1：复习巩固、激情导入复习：唱Lesson12歌曲导入：There are a lot of trees where you live. Why we need trees, do you know? Step2：出示目标、明确任务1. 牢记本课黑体词汇：reason/air/pleasant/among/dig/energy/nothing/die/heat/bamboo/kilofram2. 熟读对话，把握其意；3. 背诵重点句子1-4，并灵活运用相关知识点。 Step3：自主学习、合作探究任务一：限时2分钟，熟读所有词汇，牢记黑体词汇任务二：熟读对话，把握其意，画出不理解处，同桌之间交流任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1. Its pleasant to walk among the trees.2. Donuts dont grow on trees.3. But we can make and build things with trees. 4. Then the wind and water dont carry the soil away. Step4：师生互动、展示提升互动一：单词记忆比赛互动二：对话熟读接力赛互动三：分角色表演对话互动四：知识点展示大比拼 知识点一：Its pleasant to walk among the trees.Pleasant为形容词，意为“愉悦的；使人愉快的”Among 是指“在三者或三者以上之中”；between指“两者之间”【词语辨析】pleasant/pleased/pleasingPleasant指一般的好，强调本身所修饰物本身具有的品质或特点使人愉悦舒服；Pleased修饰人，指其自身感到满足、高兴；Pleasing修饰物，指其自身讨人喜欢。Eg：The climate in my hometown is always pleasant.Im very pleased to see you again.Every one wants a pleasing result. 知识点二：Donuts dont grow on trees.【辨析】on the tree意为“在树上”，指的是树本身长的东西，如长在树上的叶子、花朵、果实等；In the tree意为“在树上”，但指的是不属于树本身的东西，即外来的东西。Eg：There are many oranges on the tree.There are some birds in the tree.注意：on和in表示“在墙上时”也有类似的用法：On the wall 表示东西张贴或挂在墙上；In the wall 表示门窗等嵌在墙里 知识点三：But we can make and build things with trees.【词语辨析】表示“使用”的介词in/withWith 指“使用（工具、手段等）”一般接具体的手段或工具；In指“用语言/语调/笔墨/颜色”等。Eg：He broke the window with a stone.We see with our eyes and hear with our ears.Say it in Chinese.Jenny told me the news in a low voice. 知识点四：Then the wind and water dont carry the soil away. Carry away 意为“把搬走/拿开” Step5：巩固练习、检测验收教学反思：课时16Lesson14: People and Plants Step1：复习巩固、激情导入复习：提问Lesson13知识点1-4导入：Can we live without plants? Why or why not? Step2：出示目标、明确任务1. 牢记本课黑体词汇：corn/wheat/furniture/medicine/ink等；2. 熟读课文，把握其意；3. 背诵重点句子1-5，并灵活运用相关知识点。 Step3：自主学习、合作探究任务一：限时5分钟，熟读所有词汇，牢记黑体词汇任务二：熟读课文，把握其意，画出不理解处，同桌之间交流任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1. These apples look good.2. There are about 80000 different plants that people can eat.3. Half of the worlds food comes from only 3 plants.4. Doctors use medicine to help sick people.5. Do you have a hat made of straw? Step4：师生互动、展示提升互动一：单词记忆比赛互动二：课文熟读接力赛互动三：知识点展示大比拼 知识点一：These apples look good.Look/sound/taste/smell/feel等词均可用作系动词，后接形容词作表语，构成系表结构，表示“看起来、听起来、尝起来、闻起来、摸起来”Eg：The house look different from before.The song sounds beautiful.The silk feels soft. 知识点二：There are about 80000 plants that people can eat.That people can eat.为定语从句 知识点三：Half of the worlds food comes from only 3 plants.Half (of) 意为“的一半”half 后面的谓动词是单数还是复数完全取决于half所修饰的名词。当后面的名词是不可数名词时，谓语动词用单数；当后面的名词是可数名词复数时，谓动词用复数。Eg：Half (of) her money is spent on food.Half (of ) the students in our school like playing basketball. 知识点四：Doctors use medicine to help sick people词语辨析:ill与sick用法区别1. 两者都可表示“有病的”：作定语时通常用 sick；作表语时可用 ill(英) 或 sick (美)。如：a sick man 病人 be ill sick 生病 注：在英国英语中，用作表语的 sick 可用来表示“呕吐的”或“恶心的”。如：She feels sick in buses. 她在公共汽车上觉得想呕。The long train ride made me sick. 长时间搭乘火车使我想吐。 因此若没有上下文, I was sick yesterday. 这类句子可能有歧义(可能表示“我昨天病了”或“我昨天想吐”)。2. ill 表示“有病的”时，一般不用作定语，但当它表示“坏的(=bad)”、“有害的(= harmful)”等义时，却只能作定语，不能作表语。如：ill news 坏消息 ill luck 运气不好 ill health 身体不好3. sick 表示“有病的”，可用作表语或定语，但若表示“厌烦的”，则只用作表语，其后通常接介词 of。如：Im sick of = tired of waiting around like this. 我厌烦像这样在一旁等着。Get out! Im sick of the sight of you. 滚出去，我一见到你就讨厌。4. 表示“病人”，通常用 the sick (相当于名词 ，具有复数意义)，而不用 the ill。The sick were allowed to pass free. 病人可以免费通过。5. 在下列短语中，两者一般不宜换用：sick pay 病假津贴 sick leave 病假speak ill of 说某人的坏话 think ill of 认为不好 知识点五：Do you have a hat made of straw?Made of straw 是过去分词短语作后置定语，修饰hat表示被动含义。作定语的过去分词如果是单个单词，一般放在被修饰词的前面。Eg：fallen leaves 落叶 boiled water 开水 spoken English 英语口语 developed countries 发达国家 Step5：巩固练习、检测验收教学反思：课时17Lesson15: Danny Grows Grain! Step1：复习巩固、激情导入复习：提问Lesson14知识点1-5导入： How does Danny grow grain? Step2：出示目标、明确任务1. 牢记本课黑体词汇：raise等；2. 熟读日记，把握其意；3. 背诵重点句子1-3，并灵活运用相关知识点。 Step3：自主学习、合作探究任务一：限时2分钟，熟读所有词汇，牢记黑体词汇任务二：熟读日记，把握其意，画出不理解处，同桌之间交流任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1. I have a lot of to write about today.2. Now something new is growing at the top of the stem.3. Later, the head will turn into wheat seeds. Step4：师生互动、展示提升互动一：单词记忆比赛互动二：熟读邮件接力赛互动三：知识点展示大比拼 知识点一：I have a lot of to write about today.不定式作定语时，一般指一个尚未发生的动作。Eg：I have a lot of work to do.Here are some books for you to read.【注意】不定式做定语时，须放在被修饰的名词或代词之后，不定式常和它修饰的词有动宾关系；因此，如果这个不定式是不及物的，它后面就应有必要的介词。Eg：We have nothing to worry about.The nurse has five children to look after. 知识点二：Now something new is growing at the top of the stem.【复合不定代词的用法】复合不定代词是指由every-, some-, any-, no- 与-thing, -one, -body等构成的不定代词。和运用时要注意：1. 句式问题A) 含any-的一般用于疑问句、否定句或条件句中，但表示“无论何事”时，可用于肯定句。如：Do you have anything to say?你有什么话要说吗? I didnt meet anybody new at the party.在那次聚会上我没有碰到任何生人。John can do it, if anyone can.如果有人能做此事，那就是约翰了。He will do anything for a quiet life.只要能过上安宁的日子他什么都愿意做。B) 含some-的一般用于肯定句，也用于表示请求邀请的疑问句或预计是肯定回答的疑问句。如：I have something to ask you.我有事情要问你。Are you expecting someone this afternoon?今天下午你是不是等什么人？C) 含every-的可用于肯定句、疑问句、否定句。He lost everything that was dear to him.他所珍贵的一切都损失了。Is everybody here?到齐了吗?（比较：Is anybody here? 这里有人吗？）2. 否定问题含no-的是完全否定，not与含any-的也构成完全否定，但没有any-not的说法；not与由含every-的是部分否定。如：She doesnt know anyone here. She has got no one to talk to.她在这里一个人也不认识；她没有人谈话。I agree with most of what you said, but I dont agree with everything.我同意你说的大部分内容我并非同意你讲的一切。Everyone cannot do it.=Not everyone can do it.并不是每个人都能做这个。3. 代词问题含-thing的，用it代替；含-body, -one的，一般用they代替，在正式文体中可用he。如： Anything could happen, isnt it?什么事都可能发生，对不对？If anyone finds my pen, I hope they/he will tell me.如果有人见到我的钢笔，我希望他们/他能告诉我。4. 主谓一致复合不定代词作主语，谓语动词要用单数。如：Something is wrong with me computer.我的是脑有点问题了。5. 定语后置修饰复合不定代词的形容词要位于后面。如：I have something important to tell you.我有件重要的事要告诉你。6. 习语问题要注意含复合不定代词的习语，如for nothing(徒劳，免费)，nothing doing (不行，我不干)anything but (=not at all决不，根本不)，nothing but